Katheryn Winnick (born December 17, 1977) is a Canadian actress. She is known for her starring roles in the television series Vikings, Wu Assassins, Big Sky, and her recurring role on the television series Bones.
Batman and Green Arrow doesn't always see eye to eye, but still they are good team mates. That is until their former mentor, Ra's Al Ghul returns from death using the Lazarus Pit. Ra's sees the two as team mates and allies so he plans to pit Batman and Green Arrow against eachother in a bid of discover who is the most prized trained student/assassin. Ra's Al Ghul isn't alone in this path, he enlists the mind of the great Fear producing professor: Scarecrow. Can Catwoman and Black Canary help stable their minds and stop them. Who will win? The Dark Knight or The Emerald Archer?